// 石头剪刀布
// node 2.js rock    // 电脑也会自动随机出一个并输出结果

let playerAction = process.argv[process.argv.length - 1]

// 随机
let computerAction = ''
let random = Math.random() * 3
if (random < 1) {
    computerAction = 'rock'
} else if (random > 2) {
    computerAction = 'scissor'
} else {
    computerAction = 'paper'
}


// 比较
if (playerAction === computerAction) {
    console.log('平局');
} else if (
    (playerAction === 'paper' && computerAction === 'scissor') ||
    (playerAction === 'scissor' && computerAction === 'rock') ||
    (playerAction === 'rock' && computerAction === 'paper')
) {
    console.log('你输了');
} else {
    console.log('你赢了');
}
